| month | day | visitor | score | home | score |
|---|
| November | 3, 2017 | Celtics | 106 | Bulls | 115 |
| November | 4, 2017 | Celtics | 99 | Bullets | 88 |
| November | 5, 2017 | Knicks | 112 | Celtics | 103 |
| November | 7, 2017 | Heat | 88 | Celtics | 87 |
| November | 11, 2017 | Knicks | 134 | Celtics | 122 |
| November | 14, 2017 | Rockets | 89 | Celtics | 116 |
| November | 17, 2017 | Celtics | 111 | Cavaliers | 104 |
| November | 24, 2017 | Celtics | 101 | Pistons | 103 |
| November | 25, 2017 | Bucks | 104 | Celtics | 94 |
| November | 26, 2017 | Celtics | 110 | Mavericks | 94 |
| November | 27, 2017 | Celtics | 114 | Knicks | 115 |
| December | 1, 2017 | Celtics | 86 | Magic | 70 |
| December | 3, 2017 | Celtics | 99 | Knicks | 88 |
| December | 6, 2017 | Magic | 89 | Celtics | 107 |
| December | 7, 2017 | Magic | 74 | Celtics | 97 |
| December | 11, 2017 | Celtics | 77 | Grizzlies | 79 |
| December | 13, 2017 | Pistons | 71 | Celtics | 95 |
| December | 14, 2017 | Jazz | 105 | Celtics | 89 |
| December | 16, 2017 | Heat | 93 | Celtics | 77 |
| December | 17, 2017 | Celtics | | Spurs | |
| December | 18, 2017 | Spurs | | Celtics | |
| December | 19, 2017 | Blazers | | Celtics | |
| December | 20, 2017 | Celtics | | Heat | |
| December | 23, 2017 | Warriors | | Celtics | |
| December | 24, 2017 | Cavaliers | | Celtics | |
| December | 25, 2017 | Celtics | | Hawks | |
| December | 26, 2017 | Cavaliers | | Celtics | |
| December | 28, 2017 | Pistons | | Celtics | |
| December | 29, 2017 | Celtics | | Lakers | |
| December | 31, 2017 | Pacers | | Celtics | |
| January | 2, 2018 | Bucks | | Celtics | |
| January | 3, 2018 | Celtics | | Jazz | |
| January | 5, 2018 | Celtics | | Heat | |
| January | 6, 2018 | Mavericks | | Celtics | |
| January | 7, 2018 | Celtics | | Blazers | |
| January | 9, 2018 | Suns | | Celtics | |
| January | 10, 2018 | Celtics | | Bucks | |
| January | 13, 2018 | Celtics | | Nuggets | |
| January | 18, 2018 | Celtics | | Magic | |
| January | 19, 2018 | 76ers | | Celtics | |
| January | 20, 2018 | Celtics | | Bullets | |
| January | 21, 2018 | Hornets | | Celtics | |
| January | 23, 2018 | Sonics | | Celtics | |
| January | 28, 2018 | Celtics | | 76ers | |
| January | 29, 2018 | Celtics | | Nets | |
| January | 30, 2018 | 76ers | | Celtics | |
| February | 5, 2018 | Celtics | | Kings | |
| February | 7, 2018 | Celtics | | Suns | |
| February | 14, 2018 | Celtics | | Hornets | |
| February | 15, 2018 | Celtics | | Bullets | |
| February | 16, 2018 | Kings | | Celtics | |
| February | 18, 2018 | Hawks | | Celtics | |
| February | 19, 2018 | Celtics | | Wolves | |
| February | 21, 2018 | Clippers | | Celtics | |
| February | 26, 2018 | Bullets | | Celtics | |
| February | 27, 2018 | Bulls | | Celtics | |
| March | 1, 2018 | Celtics | | Warriors | |
| March | 3, 2018 | Bullets | | Celtics | |
| March | 5, 2018 | Celtics | | Pacers | |
| March | 6, 2018 | Hornets | | Celtics | |
| March | 9, 2018 | Nets | | Celtics | |
| March | 10, 2018 | Celtics | | 76ers | |
| March | 14, 2018 | Pacers | | Celtics | |
| March | 16, 2018 | Celtics | | Magic | |
| March | 21, 2018 | Nuggets | | Celtics | |
| March | 23, 2018 | Celtics | | Clippers | |
| March | 24, 2018 | 76ers | | Celtics | |
| March | 27, 2018 | Grizzlies | | Celtics | |
| March | 28, 2018 | Celtics | | Bucks | |
| March | 29, 2018 | Celtics | | Nets | |
| March | 30, 2018 | Lakers | | Celtics | |
| March | 31, 2018 | Wolves | | Celtics | |
| April | 3, 2018 | Celtics | | Cavaliers | |
| April | 5, 2018 | Celtics | | Nets | |
| April | 6, 2018 | Celtics | | Knicks | |
| April | 8, 2018 | Celtics | | Sonics | |
| April | 9, 2018 | Celtics | | Rockets | |
| April | 11, 2018 | Nets | | Celtics | |
| April | 13, 2018 | Celtics | | Bulls | |
| April | 15, 2018 | Bulls | | Celtics | |
| April | 18, 2018 | Hawks | | Celtics | |
| April | 20, 2018 | Celtics | | Heat | |